Insider transactions

Stephanie Zapata Moore

CIK 1703634 · EVP and General Counsel · last filed 2026-03-12

Stephanie Zapata Moore is an EVP and General Counsel who has filed 42 SEC Form 4 insider transactions across 2 companies since 2017. The most recent filing shows the insider sold $1.6M of VST on Mar 12, 2026. Across all open-market trades the lifetime net is −$34.9M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $16.7M across reported positions.

"Disclosed insider exposure" sums this person's most-recently-reported share counts across each company they're an insider in, multiplied by the current underlying price. It is not net worth — it misses retail holdings, private investments, real estate, index funds, and any company where the person isn't an SEC-reporting insider. For informational purposes only.

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Disclosed Exposure
$16.67M
Companies
2
Total Filings
42
Lifetime Open-Market Net
-$34.87M

Charts

Trading activity, where the exposure sits, and each trade against the stock price.

Filer Profile

Reported Address
C/O VISTRA ENERGY CORP.
1601 BRYAN STREET
DALLAS, TX 75201
Profile details as reported on the filer's SEC submissions — for individual insiders the address is often in care of the issuer. Related filers are identified from jointly filed SEC submissions and shared reported addresses. View filings on SEC EDGAR.

Holdings By Company

Latest on-record share count from this person's most recent non-derivative Form 4 transaction in each company. Disclosed exposure = shares × current underlying price.
Symbol Role Shares Price Disclosed Exposure Lifetime OM Net Filings Latest Filed
VST EVP and General Counsel 114,409 $145.66 $16.67M -$23.47M 15 2026-03-12
Vistra Corp. (VST.WS.A) Delisted EVP and General Counsel 137,782 $0.01 $1.1K -$11.39M 19 2023-08-15

Recent Filings

42 filings
Insider activity across all companies, newest first. Form 4 rows are post-trade confirmations (buys, sells, grants, exercises). Notice (144) rows are pre-trade notices of intent to sell restricted or control stock under Rule 144 — they may not all execute. Compare adjacent dates to see which notices became actual sales.
Filed Symbol Action Net Shares Net $ Link
2026-03-12 VST Sell (S) −10,000 -$1.60M EDGAR
2026-03-09 VST Notice (144) −10,000 -$1.64M EDGAR
2026-03-09 VST Mixed +3,393 -$328.6K EDGAR
2026-02-26 VST Mixed +44,764 $7.68M EDGAR
2025-12-02 VST Gift (G) −3,602 $0 EDGAR
2025-11-26 VST Sell (S) −8,219 -$1.42M EDGAR
2025-11-24 VST Notice (144) −8,219 -$1.42M EDGAR
2025-05-29 VST Sell (S) −35,000 -$5.65M EDGAR
2025-05-27 VST Notice (144) −35,000 -$5.65M EDGAR
2025-03-07 VST Mixed +3,496 -$168.6K EDGAR
Showing 1–10 of 42
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Form 4 codes: P = open-market purchase · S = open-market sale · A = grant/award · M = option exercise · F = tax withholding at vest · G = bona-fide gift · D = disposition to issuer · J = other (see filing footnote). Only P / S codes carry directional signal.
Notice (144 / 144/A): Form 144 is a notice of intent to sell restricted/control stock under Rule 144, filed before the sale; 144/A is an amendment. Many notices are pre-scheduled under Rule 10b5-1 plans. A Form 4 with code S typically follows within a few days when the planned sale executes; missing follow-up Form 4s suggest the notice was cancelled or modified.